Take-up for crochet-machines.



S. W. AVIS.

TAKE-UP FOR CROCHET MAGHNES.

APPLICATION FILED JAN.9. 1913.

1, 1 1 1,986, Patented sept. 29, 1914.

INVENTO VV'IT ESSES* Q mm1/*J BY- rms ATTORNEYS== FHL' MORRIS PETERS C0PHoTo-L-ITHO.. WASHING roN. D C.

UNITED sTATEs PATENT oEEICE. n

SAMUEL W. Avis, E HARTECRD, CCNNECTICIIL `AssIGNoRTo THE MERRow MACHINECOMPANY, 0E HARTFORD, CONNECTICUT, Aj CORPORATION 0E CONNECTICUT. j

TAKE-F FOR CROCHET-MACHINES.

` Specification of Letters Patent. Patented Sept, 29 1914, Applicationmea January 9, 1913; sriai No. 741,052.

To all whom t mag/concern: I

Be it known that I, SAMUEL W. Avis, a citizen of the United States,residingvat Hartford, county of Hartford, State of Connecticut, havemade certain new and* useful Improvements in Take-Ups forCrochet-Machines; and I do hereby declare the following to be a full,clear, and c Xact de scriptioii of the same,.reference being had* to theaccompanying drawings, forming a i part of this specification, `and tothepgures and lettersof reference marked thereon.'

This invention relatesto that class of i. crochet machinesl wherein athread carrying implement passes` the thread through the fabric and ahook or looper seizes this thread alternately above and below the fab`ric and drawsit to the edge ofthe fabric,

interlooping the thread to forman .over` tion is to facilitate theformation of sym-f inetrical and uniform stitches, another is tofacilitate altering the character Vof the stitch, and `a `furtherobjecty is to piill `off and take up thread for the* stitch-formingimplements at the properftimes and than has heretofore been possible'.`

Other objects will hereinafter become ap-` parent.. ,i Y `My inventionis animprovenient onthe device set forth in an` application Serial No.741,060, filed by Joseph M. Merrow` January 9, 1913, andconsists ofcertain new and useful; features, combinations and `de"-4 tails oflconstruction hereinafter described.

and claimed.

Referring,` to. the accompanying' "drawj ings :-Figure. 1 is a frontlelevation ofa crochet machine containingan embodiment `of my invention.Fig. 2 is aleftlend elevation of the embodiment of my invention shown inFig. 1 and of the adjacent parts* of the machine. Fig. 3is a frontelevation of Fig. 2 with the moving parts in .another position, andhaving partsn removed and part of the frame being broken away, to

larly `,suitable for u'sejonwzbothlplain and .shell stitchy two threadcrochetmachines of Iferred embodiment 'of l, been shown applied to aMerrow shell stitch machine wherein j PrO-.- videnioreperfect..controlof the thread.

`mcknshaft 10. i -H'The numeral 13 indicates the chaining positions ofthe stitch forming implements more clearly. Fig.` 4 is a plan view ofthe .i

elements of my improvementand adjacent machine being shownin section. j

The particular embodiment of my devicev shown inthe drawings Isa formparticuthe wellv known Merrow type.

Examples of plain crochet machines are set,V forth. and referred to` inUnited-StatesI kPatents #414,718,` issued November 12, `1889 and497,587., issued May.' 16, 1893. In the shell stitch machines` thefabric fed only after several stitches havebeenformed at or near onepoint. The stitches are thus formed in clusters and when the fabric `isfed along they are spread `out at their outer .extremity and assume a`forni similar to `that of a fan or of a scallop shell. The

production of stitches of this nature is set .i forth in United StatesPatents #414,233

and 414,235, bothissued November 5, 1889; and machines for producingshell stitches lare shown in 448,722, issued March 24, 1891;

and 1,045,163, issued November 26 1912.

For thepurposel of illustration, a .pref

my invention has I indicatesihe medie, 2 the needle bar,

3 the link connecting the needle bar` clamp 4 to the vneedle bar` lever5 yby means of the A screw 'studs` 6 pand 7; Vthe j oscillatingrecipiocatingyc'rochet .hook18 has a"latch 8,and is operatedin theusualmanner. -I The supplementalthread `carrier9 kvibrates in a` path that isat an angle both to the axis `of the. needle bar, and. tothe path `ofthek v hook, and it is adjustably secured to the u V nger, v14`theneedle plate, 15 the work v fplate, ljthe fabric being finished, 17the .machineframe and 17a the frame head.`

`j` ,l The elements` 17? y; and .17c are bosses `on fthe framehead,`18is`the needle thread` ten-` sion, 19 isjthe `supplemental threadtension,'

2O is auneedlev thread guide and` 21 a supplemental `thread guide., .j jj.

In the operation of machines as thus far described, ias rthe needleascendsandits eye `show `the disposition of the threads and the l it`draws the needle thread out of` the.

yemerges from the upper surface of the cloth,

i straight line lbetween the `guide eye l2O and the point where thethread penetrates the fabric, and thus draws a slight supply of threadand, as the needle descends the needle "-,eye reversing its action letsout this supply of thread to the crochet hook. `The supplemental threadcarrier vibrating be- Atween the guide 21 and the edge of the l cursthat $4there is undue strain imposed 'uponitlie -thre'ad v(':lur'ingportions of theVv stitch-forming cycle, causing irregularityA ostitchingjbreaking of thread and other imperfections yin the operationof the machine. It is the vparticular purpose of this i invention' tovreduce and eliminate these and t yjet-her undesirable tendencies, andfurther,

fit

"to control 'the conditions inV the stitches and thecliaracter of thefinish. y thef'imp'rovement as illustrated, 22 is reciprocating take upeye having thread passages or eyes 22a and 22h in its head anda shankportion 22c which is secured t'the stud 7 b'ymeans of the set screw i 23'. "The head orbody portion of the screw "stud ismadel somewhat longerthan usual oi'tha'tj the set screw 23 may be readily ac,-

ssible. -Being secured to a stud that is "iiiviXed relation ywith theneedle bar, the

` style1-'22- is Areciprocated, ascending and defseending with the'ascent and descent of theneedlel' The three take-up threadarmsl 2 4, 25'and 26,*havingthe thread passages erfeyes v24a, 25a and 26Lrespectively, are

secured-to the frame head 17 a' bythe screws 27, 28 and ,29, upon whichthe armsmay be swung to adjust the positiOn of the y? jllllereon'. t j

L Thwlleedle thread as it comes `from the tensionflS, is 'preferablythreaded through theouter thread passage 22a in the eye 22, then throughthe eye 26b1 of the arm 26, and

l. then'thrugh the guide 20 to the needle eye. "The supplemental' threadas "it leaves the*I tensionlQ is threaded through the passage '24a'inthe arm 24, -then through the passage 22b of the eye 22,. then throughthe passage L et the yarm 25, and finally through thfe guide' 21 to thesupplemental thread carrier "The needle thread is made to appear ysomewhat 'darker than *the supplemental throughout the drawings for the'sakefofclearness. The eye' 22L in descend! iiigtfbeinds or pulls theneedlethread out of the"` straight line between the tension 18 and theeye 26a, `thereby pulling needle` vthread through the tension, and theeye 22a in'iising, "slackens this' thread bypermit! ting it to againapproach the straight line between the tension and the eye 26a. The eye22h, in descending from the top of the stroke about as shown in Fig. l,slackens the supplemental thread as it approaches the position shown inthe dotted lines in Fig. 3 by decreasing the distance between the movingeye 22b and the two :fixed eyes 24EL and 25a, through which thesupplemental thread passes. Then passing this position andcontinuing onto the bottom oi its stroke, the eye 22 pulls off thread by increasingthe distance between the moving eye 221 and the two fixed eyes 24a and25a. yThe ascending of' the Ieye 22b slackens the supplemental thread as'it approaches a position midway between thetwo eyes 24 and 25@L and,passing this position in its continued ascent the eye 22b takes up amore orless definite amount of the 'slack in the supplemental threadaccording to the 'adjustment `of one or `both of the two fixed eyes. Thesupplemental thread and needle thread take-ups, coperate with thesupplemental thread carrier, the needle and the crochet hook to ease upor slacken the thread at suitable periods, and also to take up thethreads and to -pull the threads through the tensions at suitable times.The amount of thread pulled oli1 can be regulated within practicallimits by changing the positionsot the thread eyes 24a 25a and2621,'fthu`s making the loops of the finish tighter or looser as may bedesired.

'Having thus described my invention, I claim, 1 v

l.l A take up for plural thread machines embodying reciprocatingimplement, two

Vpairs of stationary thread supporting elements cooperating with thesaid implement, one pair being arranged at one side of and in a linesubstantially parallel with the path of the implement and the other pairIbeing 'arrangedone `on either side of and in 'a line inclined to thepath of the implement. 2.A 'ln a two thread crochet machine including aneedle, a needle bar and mechanism A:tor actuating the same, thecombinaf tion of a pluralityfof threadsupporting elelments mounted oneabove the other on a stationary portion of the machine and at oneside'of a line parallel with the needle bar, a' thread supportingelement for one of the threads on the opposite side of said line,

a take up implement carried by a member of theA needle bar 'actuatingmechanism in a 'path parallel with the needle bar, and oplerating'"uponboth of the threads each between'two `independent points ofy support,

to pull ofi and control eachv of the threads independently of the other.

l3'. A"thread controlling system comprising a reciprocating threadcarrying imple- `-ment and two pairs of stationary thread supportingelements with which the said thread carrying implement coperates, onepair being arranged on one side ofthe path of reciproca-tion oftheimplement andthe other pair being arranged one on each side' of the pathof the implement and in a line diagonal thereto, means whereby the\distance between the respective elements of each pair of threadsupporting elements may be adjusted, a supportfor the said thread supf`porting elements and means for carrying and actuating the threadcarrying implement.

4. In a two thread crochet machine including a needle bar and mechanismfor actuating the same, a thread pull off and take up embodying threethread guides mounted on a stationary portion of the machine at one sideof aline parallel with the needle bar and in the direction of itsreciprocation with relation to each other, a tension mounted at thesideof said line opposite to that on which the thread guides arelocated, a thread eye carried by the needle bar mechanism andreciprocating between the tension and the thread guides, and means foradjusting the thread guides relatively to each other and with relationto the tension, in the direction of the reciprocation of the thread eye.y

5. In a two thread lcrochet machine, a take up for the two threadsembodying two pairs of thread supporting elements, a .reciprocatingthread engaging implement, the thread supporting elements being arrangedone pair at one side of the .pathof the reciprocating implement" and theother pair ment and in a line diagonal to said path,

the threads beingpassed through the reciprocating thread engagingimplement intern mediate `the elements of the respective pairs of threadsupporting elements, whereby one thread isconstrained at two points onthe l same side of the path of the implement and the other thread isconstrained at two points `on opposite sides respectively of the saidpath and in a line diagonal thereto, while thethread intermediate thepoints of constrainment is reciprocated in the path of the implement. i

6. In a crochet machine adapted to forming overedge stitches from a mainthread carried by an eye pointed needle and a supplemental threadinterloopedwith the main thread by means of a crochet hook, the comfbination of take up devicesfor the main and 4supplemental threads,thefsaid devices ncluding `a moving implement and two pairs of threadsupports, one pair coperating with the implement for each thread, thepath of movement of the implement being between the elements of the pairof main thread supportsand at one side of the line of the elements ofthepair of supplemental thread supports whereby the main and supplementalthreads are pulled off and controlled substantially `as shownI anddescribed.

a SAMUEL W. AVIS.

Witnesses: 4j A. f GEORGE .ALLEN PAGE,"` W. A. W.`STEWA RT.

Copies of this patent may be obtained for ve cents each, by addrssingthe;Cdminissioner of Patents,l

` Washington,Il).C.`

